1965097672 has 32 divisors (see below), whose sum is σ = 3792294720. Its totient is φ = 954233280.

The previous prime is 1965097637. The next prime is 1965097691. The reversal of 1965097672 is 2767905691.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12238 + ... + 63874.

It is an arithmetic number, because the mean of its divisors is an integer number (118509210).

Almost surely, 2^1965097672 is an apocalyptic number.

It is an amenable number.

1965097672 is a deficient number, since it is larger than the sum of its proper divisors (1827197048).

1965097672 is a wasteful number, since it uses less digits than its factorization.

1965097672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51781 (or 51777 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 52.

The square root of 1965097672 is about 44329.4221933921. The cubic root of 1965097672 is about 1252.5489687004.

The spelling of 1965097672 in words is "one billion, nine hundred sixty-five million, ninety-seven thousand, six hundred seventy-two".